子纤维灰的工程属性 纳入可持续石灰混凝土
Nawab Sameer Zada1, Nasir Shafiq1, Ahsan Waqar1
1Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS (UTP), Seri Iskandar, Perak, Malaysia.
Scientific reports
|November 29, 2025
概括
子纤维灰 (CFA) 可提高混凝土的性能,可达到6%的替代性. 这种可持续的方法提高了机械强度,并减少了体内碳,为建筑材料提供了一个有希望的环保替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续建筑 可持续建筑
背景情况:
- 石灰混凝土是重要的建筑材料,含有大量的碳.
- 像子纤维灰 (CFA) 这样的废物材料显示出改善混凝土性能的潜力.
- 在现代应用中,CFA在石灰混凝土中的使用尚未得到充分探索.
研究的目的:
- 研究用CFA代替石灰对石灰混凝土机械性能的影响.
- 为了评估CFA对石灰混凝土体内碳的影响.
- 为了建模和预测CFA修改的石灰混凝土的性能.
主要方法:
- 经验方法被用来测试石灰混凝土的CFA百分比在3%到18%之间.
- 测量了关键的机械性能,包括压力强度 (CS),屈曲强度 (FS),分裂拉伸强度 (STS) 和弹性模量 (MOE).
- 计算了嵌入式碳,并应用了响应表面方法 (RSM) 来进行建模和优化.
主要成果:
- 加入CFA对CS,FS,STS和MOE产生了积极的影响,其替代水平高达6%.
- 超过6%,由于CFA和石灰的化学成分,改善趋于平稳.
- 实体化碳和生态强度生产率的显著改善被观察到,表明增强的可持续性.
结论:
- 用高达6%的CFA修改的石灰混凝土表现出更好的机械性能和更少的环境影响.
- CFA是一种可行的补充材料,用于制造可持续的石灰混凝土复合材料.
- RSM有效地模拟机械性能,能够根据CFA内容准确预测性能.
更多相关视频
相关概念视频
Abrasion Resistance of Concrete
481
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
One such test is the revolving disc test, where three plates...
481
Fiber Reinforced Concrete
312
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
312
Additives and Fillers in Concrete
312
Additives and fillers are integral to enhancing the properties of concrete. Pozzolans and blast-furnace slag are additives or admixtures due to their reactions with calcium hydroxide released during cement hydration. Fillers, which are finely ground and similar in fineness to Portland cement, improve concrete attributes such as workability density, and reduce capillary bleeding or cracking. Some fillers possess hydraulic properties or participate in benign reactions within the cement paste.
The...
The...
312
Fineness of Cement
436
The fineness of cement directly influences the rate of hydration, as the hydration begins at the surface of the cement particles. In addition to hydration, the fineness of cement is vital for various properties of concrete including workability, gypsum requirement, and long-term behavior. The fineness of cement is represented in terms of the specific surface of cement which is typically measured in square meters per kilogram, with several methods available for this determination.
Direct...
Direct...
436
Workability of Concrete
381
The workability of concrete is a crucial property that affects its handling, placing, and finishing during construction. It describes the ease with which concrete can be mixed, placed, compacted, and finished. Workability is primarily concerned with the concrete's movement and its ability to resist internal friction and external resistance from molds and reinforcements during the application process.
Concrete's workability is determined by its resistance to internal forces that arise...
Concrete's workability is determined by its resistance to internal forces that arise...
381
Water Cement Ratio
1.1K
The water-cement ratio is pivotal in defining concrete's quality. This ratio, a balance between the weight of water and cement in the mix, shapes the concrete's strength, durability, and resistance to environmental factors. As identified by Abrams’ law, less water in the mix equates to stronger concrete. However, water is essential not only for the chemical process of hydration but also for the concrete's workability and compaction. While hydration chemically binds water and...
1.1K


